title: SBS-managed high-peak-power nanosecond-pulse fiber-based master oscillator power amplifier.
abstract: We report on a compactly packaged Yb-doped fiber-based laser architecture featuring an actively pulse controlled, single-longitudinal-mode seeder and multistage amplifier chain terminated by a "folded" rod-type photonic crystal fiber. In this laser source, stimulated Brillouin scattering (SBS) is the power-limiting factor, but is managed by phase modulating the seeder with a pseudo-random noise signal. Pulse energy/peak power of ~2 mJ/1.5 MW at 10 kHz repetition rate are thus obtained within ~1.55 ns pulses of peak spectral brightness >20 kW cm(-2) sr(-1) Hz(-1).
authors.affiliation: Northrop Grumman Aerospace Systems, 1 Space Park Dr., Redondo Beach, California 90278, USA.
authors.forename: F
authors.initials: F
authors.lastname: Di Teodoro
authors.forename: J
authors.initials: J
authors.lastname: Morais
authors.forename: T S
authors.initials: TS
authors.lastname: McComb
authors.forename: M K
authors.initials: MK
authors.lastname: Hemmat
authors.forename: E C
authors.initials: EC
authors.lastname: Cheung
authors.forename: M
authors.initials: M
authors.lastname: Weber
authors.forename: R
authors.initials: R
authors.lastname: Moyer